这种物质很容易由甲醛和肼反应而得到.The material is readily prepared by reaction of formaldehyde and hydrazine.甲醛能慢慢使多种病毒失去活性.Formaldehyde slowly inactivates many viruses.二氧化硫和甲醛都可产生刺激.Sulfur dioxide and formaldehyde both produce irritati...
嫩芽把土顶起来了.The sprouts have pushed up the earth.小树抽出了嫩芽.The saplings are budding.春天来了, 树木都开始吐出绿色的嫩芽.As the spring is coming, all the trees are beginning to put out green buds....
It'showed that the MV mass immunization campaign had almost reached primary target.本次MV强化免疫基本达到预期目标.Soon afterwards they boarded a Lebanese cargo ship , MV Sea Horse.之后不久,他们又登上黎巴嫩的海马号商船.Continue the titration until ...